Clamp



Oct. 27 1925. 1,559,334

A. w. 'M CALLISTER CLAMP Filed Feb. e, 1925 Patented Oct. 27,1925.

' UNITED STA ARTHUR w. MCoALLIs'r-Ert, or sHInLnR, OKLAHOMA, ASSIGNOR or ONE-HALF TO.

ALEXANDER .R. OHBRIEN, OF BART ESVILLE, OKLAHOMA.

CLAMP: I

i Application filed February 9, 1925. Serial No. 7,978.

To all whomz't may concern: j

Be it known that I, ARTHUR WV. MoCAL- LIsTER,'a citizen of the United States, residing at Shidler, in the county of Osage and State of Oklahoma, have invented certain new and useful Improvements in Clamps, of which the following is a specification.

This invention .relates to improvements in clamps particularly well adapted to be used in connection with the pumping equipment of oil wells and the like.

The primary object ofjthis invention is the provision of a clamp which may be readily and quickly detached, without the necessity of bolt adjustments; the improved clamp being preferably adapted to be used in connectionwith the pull or surface rods between the power application and pumping jacks of oil well pumping equipment.

A further object of this invention is the provision of a clamp adapted to be used in connection with oil Well pumping equipment, embodying novel means for connecting a clevis to a pull or surface rod, in detachable manner, Without means of bolts.

The conventional clampcused in connection with the coupling of the surface rod to the pumping jack and power mechanism of oil well pumping equipment, embodies the use of aplurality of,bol ts, which are ex-,

tremely diflicult to manipulate for removal of the clamp or clevis. Frequently the conventional clamp will break because the same has not been properly tightened, and the K occasions are ofcommon occurrence where such breaks result in conslderable. loss, due

to waste of oil; expenditure of labor; and maintenance expenses in connection with the destruction 'ofpthe clamp. The improved clamp of this invention 'does away with the tedious process of bolting. the clamp body to the surface rod and clevis, and embodies a novel meansfor quickly-detaching the clevis with respectto the clamp body; and a novel arrangement for the secure and quick attachment and detachment of the pull or surface rodwith respect-to the clamp body. V Other objectsand advantages of this invention will be apparent during the course of the following detailed (lGSOIlPtlOIL In the accompanying drawings, forming a part of this s ecification, and where n similar reference c aracters designate cow responding parts throughout the several views, t

Figure 1 is aside elevation ofthe improved clamp, showing the same assembled and attached to an endof the surface-"rod. Figure 2 is a cross sectional View taken through the clamp body, with the details assembled .as.:is illustrated in Figure 1.

Figures 3 and 4 are cross sectional views taken substantially on their respective lines in Figure 2 of the drawing;

Figure 5 is a fragmentary sectional view taken through the improvedclamp, particularly at the body thereof, showing the means by which the clamp maybe connected to one type of surface rod of construction other than the construction of the surface rod illustrated in Figures 1 and 2. a

In the drawing, wherein for' the purpose of illustration is shown a preferred and modified form of the invention, the letter A may generally designate a surface or pull rod, or any other analogous element to which it is desired to attach the improved clamp B.

The improved clamp or coupling B pref erably'includes a body C; clevis D, detachable with the body G, and grip means E for detachable connection of the rod or element A with the body 0. A

First referring to the surface rod A, the

sameis of the type which is connected at one end to the pumping jack, and at the opposite end to the power line or mechanism. At each end thereof an improved clamp '13 is placed. The rods A areof numerous types, but in the drawing the same is of the typehaving the enlarged end or head portion 10 at the ends thereof, which the clamp receives therein. Other types of rods, such as the rod K illustrated in Fig- ,ure ,5 are also conventionally used, andithese are of uniform diameter. from end to end,

without the headed ends or enlargements, and in connection-withsuch types of rod, a special type of grip jmechanism L is used.

The clevis or U.-shaped connecting link D is ofsomewhat novel formation, including the relativelystraight leg portions 10 and 11, connected in a converging relation by the U-shaped-bight portion 12; said legs 10 and 11 converging, from the bight portion 12 towards their free ends, and at which free 7 ends the legs 10 and 11 respectively provide the enlarged heads 13 and 14, which are the legs bf thezbody c toward theopposite or out siderend surfaee 23.0f the body C. .These grooves and21 terminatein enlargements or sockets and ;26 respectively,,iat their ends adjacent the vfront surface 23 of the bot y, and these sockets 25 and 26 extend through said/front surface 23, and at the juncture of said sockets with the grooves 20 and 21 abutment shoulders 28 .are provided, against which the shoulderszlb of the Usl1apedclevisniember D abuts, as ,will be subsequently,inentioned. It is tobeparticularly'noted that-,the grooves20 and 21 are of-a diameter or width equal to the, diameter of the legs 10 and 11 of'the clevis J), to facilitatethe insertion or extraction of the same, and these grooves extend from end surface to end surface-of the body C, and through the sockets 25 and 26, although the widthv of saidgrooyes 20 and 21 isless than the diameterof the soclrets25 and 26, as is 4 "illustratedinFigure of the drawing.

end ofthe ,clevis D, as is illustrated by the dotted 'lines.inFigure 1,'when one leg o'fthe clevis is in one groove ,at a side of the clevis receiving body C, so that from this dotted positionthe body C may he. slipped downwardlyitowardthe convergingends of the clevis D. With such an rrangement the legs 10 and 1]. arereceived in the grooves 20 and and as [the grooves converge in the same relation aside the legs :10 and ll, the body C has, alimited novenient, so that the body C will engage in abutment against ,10 and 11 toloelr the body C and clevis D .t-ogether. In suchposition the en- ;largements 13 wand 14 lit in the. sockets 25 legs 10 and 1,1 insures sufficient friction to clamp the clevls Dandthe bo'dy C against liability of accidental detachment until the body ;'C and clevis D have :a --force applied thereto tending to disconnect the samel'iy the t moving them into the position illustrated by thecle is and the dotted .lines of the body in Figure 1 of the drawing.

Referring to the grip device E by which pe of-rod A is-eonnectcd in the body C, it is to -be noted that in connection with either the grip device E, or the grip device 'L, a uniformly tapering opening is provided, which opens at the inside and the outside surfaces '22 and 23 of the body C; the tapered openingfietapering with a d i ninishing diameter from the inside surface 22 towards it outlet at the opposite surface 23. p p

The gripIdevmei-D 18,}31'6f81t1blV of two- ,partconstruction, including the segmental parts fttlttntl 41, although-the same maybe of ,a greater number of ,parts if desired. These segmental parts 40 and 41 when assembled about the end ,of the rod A are tapered, to fit into the tapere'd pening 35. The parts 40 and 41 when assembled provide an enlarged opening 44 at the inside or large end of the grip deviceE, for receiving the head or-cnlargetl end 10 of the surface rod twopart construction, including parts and '51, which are segmental in formation, providing when assembled an external tapered surface and an internal passageway 52 ajdaptedto receive the straight endof the rod 1K. ThesectionseO and lwhen assembled provide a conical or tapered appean ance{,aclapted to .lit in the tapered openingof theclamp'bodyiC 'Anove'Lfe-ature of "the grip ,sections50 and 51 isthe "fact that the same are provided with a corrugated or internally grooved passageway 52;*the corrugations ,or transverse grooves '56 being sharpened, vor in'thefor'm of screw threads, so that the same will bite into engagement with .the end of the ro-dK Whenthe grip device L is seated inxthe'tapered opening 35,

and prevents any tendency to'pull the rod-K and clamp B apart.

From the foregoing description of this invention it is apparent'thatla novel type'of clamp has been provided, -=which while the same may-be generally used for avariety of purposes, it is especially adapted to be used in connection with the huge couplings or clamps, which are used in connection with the attachment of vsurface or pull rods to power line equipment and pumping jacks.

The type of'clampis especially well adapted for such use, andrnay be easilyvandquickly attached and detached WithIBSPBCt to the rod, and the body thereof may be easilyand quickly attached or detached with respect a great, amount of time is of considerable importance when weight is given to the ini conveniences and del ays which are thereby avoidedinconnect-ion with the special application of the clamp to oil well pumping equipment.

Various changes in the shape, size, and arrangement of parts may be made to the form of invention herein shown and described, without departing from the spirit of the invention or the scope of the claims.

I claim: I v 1. A clampcomprising a body, jaw clamping means associated with the body, sa dbody at the opposite outer edges thereof having grooves therein opening outwardly along said sides in a convergent relation, and aclevis includingside legs having portions thereof convergentlydisposed for de- 'tachable, connection 111. the convergent grooves of said body. a V

2. As an article of Imanu'facture a clevis which is substantially U-shaped 'in' formation including a pair of substantially straight leg portions connected by an arcuate bight portion integral therewith, whereby said leg portions are connected in a converging relation towards their free ends, and heads integrally formed at the free ends of said straight leg portions, providing abrupt shoulders at the juncture of the same with said leg portions.

3. As an article of manufacture a clamp body providing a pair of convergent grooves opening at the opposite sides thereof and opening at the ends therof, said body having enlarged sockets extending 1nwardly of one end surface thereof at an end of each of said grooves.

4. As an article of manufacture a clamp body providing a pair of convergent grooves opening at the opposite sides thereof, and.

extending from end to end surface thereof, said grooves at their convergent ends having enlarged sockets opening at the end surface of said body.

5. As an article of manufacture a clamp body providing a pair of convergent grooves opening at the opposite sides thereof, and extending from end to end surface thereof, said grooves at their convergent ends havwith a tapere' ing enlarged sockets opening at the end surface of said bod said body being provided opening 'therethrough between-said grooves and extending from end surface to end surface thereof, with the larger diameter of the tapered opening occurringatthe end surface of the body where the grooves are in farthest spaced relation.

6. A clamp of the class described comprising a body having grooves opening outwardly at opposite sides thereof with enlarged sockets at the ends of each of said grooves, and a clevis including legs adapted to fit into said grooves and including enlarged portions adapted to fit in said sockets whereby to prevent movement of the body and clevis in one direction when so assembled.

7. A clamp comprising a body having convergent grooves formed inwardly at opposite sides thereof opening at an end surface of said body, and a clevis of U-shaped formation including legs converging towards their free ends, said body adapted to beassembled to the clevis with the clevis legs at their convergent ends extending into the convergent grooves of, the body to connect the body and clevis against movement away from each'otherin one direction. 7 8. A clamp comprising a body providing grooves at the opposite sides thereof opening at said sides and provided with enlarged socketsfin the ends thereof'opening at an end of said body, and a clevis of U-shaped formation including legs adapted to extend into said grooves and provided with 'en-- :largements at the free ends of said legs for extending into'said sockets for detachable connection of the body and clevis.

9. A clamp of the class described comprismg a body provided with ways extending inwardly at opposite sides thereof, said ways extending along said body from end surface to end surface, said body being provided with enlarged sockets inwardly of one end surface at an end of each of said ways, said ways and sockets being disposed in convergent relation from one end of said body towards the opposite end wherein are disposed the said sockets,sand a substantially U-shaped clevis including a pair of leg portions connected in rigid converging relation by means of a bight portion, said leg portions at their convergent ends having enlarged portions thereon, said body being of a width permitting the assemblage of the same between said legs adjacent said bight portion of the clevis with one leg in one of its grooves whereby the other leg and other groove may be aligned to permit slipping of the body towards the convergent ends of said legs whereby to position the convergent legs in said convergent ways until the enlarged ends of said legs seat in the sockets of said body whereby to securely and stably suun'oi't the body andclevis in adcbachable L l i .1 y i r 31.0 In a clamp Of/[llfi class described the combination of a body .provided With a {tapered opening therethrongh, .a wedge-- -shaped4;if p1f1ni device formed of a pluralityqf-sections providing an enlargedsocket in the enlarged end tllfileQf flnClfl-lOCl PIO- vid ng an enlarged portion for seating in -said socket whereby to wedge the sections. of -Sfilfl grip against said rod to conne'ct the .same to said body.

gllgln melamp of the class describedthe combination of .a ;body provided ;\Vitl1 a tapered opening theml'hrongh, a straight rod, and a substantially conicalshapedsec- .tional grip device providing an external tapered surface adapted to seat againstthe tapered opening through the. body, .said sec- .tional grip device Pl'QVldiQgfl passageway therethrongh having a plurality ofcircum- 'ferential grooves adapted to .grip the said rod upon wedging of the grip deyicefln said tapered opcnin of the body .to prevent dero d when @an attelllptis b tach nent of the inade to move the same .a svay from said body.

1A ch mp of the chissdescribed comprising a body diaving a tapered opening therethrong h between the sides thereof eX- tendii'igfrom one end s r face to the opposite end snt acethereo flsaid body having Ways grooved inwardly of, the ,opposite sides 1 thereof at opposite sides of; the; tapered. open.-

ingand eegtendingin a converging relation froin the end surface Whereon outlets the enlarged endof said tapered opening to wardsthe opposite-end surface, aclevis prohaving ;a mod and a.

viding a pair of legs converging :towards ;t h6i1.'i' lQ G ends adapted to seat into theyside grooves of said body to prevent .n ovement of the ,clevis away from the body WlLB1'i moved in onedirectioma rod and a conical sectional glgipidevice adapted to seat in the ,tapered openingtqf/said body andto edge .in clamping enga inent against said rod when an atteniPt i nadeto nnllthe rod away gfronisaid body.

10. In a clampoflthe class described the combination of a .body, a .U-shaped clevis includinglegs having-enlargementsthereon, .said body having sockets .thereon'adapted .to receive .the legenlargements ,therein 'to prevent noven ent of the. cla np body in. one direction y from said. clevis, said body y e. diee flie thmi g e ,cdaie de vice. adapted to seat in said wa for clamping the rod tothebody 1112011} ttcn pted movement, ofthe rod away d'roin said body in one direction.

14. 7111 a clamp oft heclass describedthe co n ination of a body providing .Ways extending;- innzn'dly at .opposite sides thereof and in a coin'erging relation, aclevis provided with conyergin gmlegs adapted to seat in the \vays of said body to prevent movement of thebody from the clcvis when a pull "sexerted tending to .niove the same away from: each .othcigla 1nd,. said body .hav ingj way 'tl'ierethronqh for receiving said Li'od. an d a :wedg'e'device disposed in ,said way for engaging said rod in a clamping relation to prevent disconnection of the rod and body when the same are pulled away from each other in,.one direction. I

AR'rI-ILRW. MCGALLISTER. 

